Results 51 to 60 of about 17,862 (284)

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

NIR-Emitting Scintillators Based on CsI Single Crystals

Crystals
The development of efficient scintillators emitting in the red and/or infrared spectral range represents an important scientific challenge, as such materials could find numerous practical applications.
Dmitriy Sofich, Veronika Gavrilenko, Viktorija Pankratova, Vladimir Pankratov, Ekaterina Kaneva, Roman Shendrik   +5 more
doaj   +1 more source

SYNTHESIS, ELECTRONIC STRUCTURE AND STUDY OF YTTERBIUM TETRAPHENYLPORPHYRIN COMPLEXES STABILITY BY PHOTOELECTRON SPECTROSCOPY AND THERMOGRAVIMETRY

Тонкие химические технологии, 2016
Metalloorganic complexes of rare earth elements with porphyrins have attracted attention over the past years in view of potential applications as templates for biology, nanotechnology and medicine.
V. D. Rumyantseva, R. N. Mozhchil, V. S. Bozhko, S. I. Bozhko, A. P. Menushenkov, A. M. Ionov   +5 more
doaj   +1 more source

Characteristics of Q-switched cladding-pumped ytterbium-doped fiber lasers with different high-energy fiber designs

, 2001
We theoretically and experimentally analyze Q-switched cladding pumped ytterbium-doped fiber lasers designed for high pulse energies. We compare the extractable energy from two high-energy fiber designs: (1) single- or few-moded low-NA large mode area ...
Alvarez-Chavez, J.A., Clarkson, W.A., Nilsson, J., Offerhaus, H.L., Turner, P.W., Renaud, Cyril C., Richardson, D.J., Grudinin, A.B.   +7 more
core   +1 more source

An Examination of the Cs2NaInCl6 Luminescence: Interplay of Self‐Generated In+ and Doped Sb3+, Er3+/Yb3+ Ions

Advanced Optical Materials, EarlyView.
A new luminescence mechanism in Cs2NaInCl₆ is revealed through spontaneously formed In3+→In+ centers and Er3+/Yb3+/Sb3+ doping. Tunable visible, near‐infrared, downconversion, and upconversion emissions are demonstrated, while DFT calculations explain the electronic structure.
Inna A. Ivashchenko, Alicja Szymska‐Szymanik, Lubomir D. Gulay, Alexander Eich, Galina Gurieva, Susan Schorr, Karina V. Lamonova, Marcin Nyk, Malgorzata Makowska‐Janusik, Benjamin González‐Diaze, Katarzyna Matras‐Postołek   +10 more
wiley   +1 more source

YTTERBIUM PORPHYRINS COMPLEXES AND THEIR APPLICATION IN MEDICINE

Тонкие химические технологии, 2017
Malignant tumors are the second most frequent cause of death after cardiovascular diseases. The photodynamic therapy based on the interaction of laser light with different photosensitizers was discovered in the 20th century as one of treatment methods ...
V. D. Rumyantseva, A. E. Shchelkunova, A. S. Gorshkova, Yu. V. Alekseev, I. P. Shilov, A. V. Ivano, E. V. Davydov, A. F. Mironov   +7 more
doaj   +1 more source

Effect of Pressure on The Valency of Ytterbium in Ytterbium Monochalcogenides

Amrit Research Journal
When pressure is applied then properties of material change due to the alteration of of valency. Several effects of pressure on the characteristics of material have been investigated. This study was focused at finding the change in valency as a function of pressure of Ytterbium Monochalcogenides YbX (X=S, Se and T).
Shiva Prasad Baral, Shesh Kant Adhikari, Dipak Raj Adhikari   +2 more
openaire   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Structural Properties of Silicon Doped Rare Earth Elements Ytterbium

East European Journal of Physics
This paper presents the results of a study of the state of ytterbium atoms in silicon, carried out using the methods of Fourier transform infrared spectroscopy (IR) and Raman spectroscopy (RS).
Khodjakbar S. Daliev, Sharifa B. Utamuradova, Jonibek J. Khamdamov, Mansur B. Bekmuratov   +3 more
doaj   +1 more source

Continuous-wave Laser on Er,Yb-Codoped Pentaborate Crystal

Приборы и методы измерений, 2019
We report, for the first time to our knowledge, a diode-pumped continuous-wave microchip Er,Yb:YMgB5O10 laser. The purpose of this work was to study the growth technique, spectroscopic properties and continuous-wave laser performance of Er3+,Yb3 ...
K. N. Gorbachenya, V. E. Kisel, R. V. Deineka, A. S. Yasukevich, N. V. Kuleshov, V. V. Maltsev, D. D. Mitina, E. A. Volkova, N. I. Leonyuk   +8 more
doaj   +1 more source